Re: [Discuss-gnuradio] GR-RADAR - TEST FMCW ON HARDWARE

[Stefan Wunsch]

Hi,

Try to use the echotimer shipped with gr-radar. Actually, for FMCW you
don't need a tight TX/RX sync, but probably that fixes it.

As well, have a look at the spectrum and check the output of the peak
detector. Do you have a high enough SNR for an unambigious peak
detection? Or you are just detecting clutter? If you are just detection
clutter, it could look like random targets.

Furthermore, have a look at grradar.wordpress.com and the videos showing
the setup of the Dual CW/FSK radars. Probably that helps you too.

Greetings
Stefan

On 04/08/2016 11:51 PM, Giovanni Bengalis wrote:
> Hi Stefan, 
> 
> I'm Giovanni,actually I'm working on my last engineering project for
> university , I'm trying to implement an altimeter radio with SDR like
> USRP N210 or PicoDigitizer 250. 
> I need your help , actually the simulation works very well , so I can
> simulate the FMCW with a bandwidth of 40 MHz . When I removed the static
> target simulator and add
> a USRP Source to receive the signal by antenna , the range printed is
> random. I used a USRP N210.
> 
> 
> Sincerely,
> Giovanni B.
> 
> 
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